<template>
    <div class="home">
        <h1>首页</h1>
        <el-divider></el-divider>
        <el-upload
                class="avatar-uploader"
                action="http://localhost:7874/img/upload"
                :show-file-list="false"
                :on-success="handleAvatarSuccess"
                :before-upload="beforeAvatarUpload">
            <img v-if="imageUrl" :src="imageUrl" class="avatar">
            <i v-else class="el-icon-plus avatar-uploader-icon"></i>
        </el-upload>
    </div>
</template>

<script>
    export default {
        data() {
            return {
                imageUrl: ''
            };
        },
        methods: {
            handleAvatarSuccess(res, file) {
                this.imageUrl = URL.createObjectURL(file.raw);
            },
            beforeAvatarUpload(file) {
                const isLt2M = file.size / 1024 / 1024 < 10;

                if (!isLt2M) {
                    this.$message.error('上传图片大小不能超过 10MB!');
                }
                return isLt2M;
            }
        }
    }
</script>

<style scoped lang="less">

    /deep/ .avatar-uploader .el-upload {
        border: 2px dashed #d9d9d9;
        border-radius: 6px;
        cursor: pointer;
        position: relative;
        overflow: hidden;
    }

    /deep/ .avatar-uploader .el-upload:hover {
        border-color: #409EFF;
    }

    .avatar-uploader-icon {
        font-size: 28px;
        color: #8c939d;
        width: 100px;
        height: 100px;
        line-height: 100px;
        text-align: center;
    }

    .avatar {
        width: 100px;
        height: 100px;
        display: block;
    }
</style>